文献类型：期刊文献

英文题名：Ti3AlC2 MXene Nanosheet/Ag Nanowire/Carbon Nanotube Three-Phase Aerogels for Electromagnetic Interference Shielding

作者：Fang, Jiangyu[1];Xu, Jian[1];Liu, Xiaoyun[1];Zuo, Peiyuan[1];Cui, Zhong-Kai[2];Zhuang, Qixin[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Specially Funct Polymer Mat & Related Tec, Minist Educ, Shanghai 200237, Peoples R China;[2]Southern Med Ustorageniv, Sch Basic Med Sci, Guangzhou 510515, Peoples R China

年份：2023

卷号：6

期号：18

起止页码：17276

外文期刊名：ACS APPLIED NANO MATERIALS

收录：;EI(收录号：20233914783382);WOS:【SCI-EXPANDED(收录号:WOS:001062621200001)】；

基金：This work is supported by the National Natural Science Foundation of China (52073091 and 22171086), Shanghai Pujiang Program (22PJ1402500), the Natural Science Foundation of Shanghai (20ZR1414600), and the Fundamental Research Funds for the Central Universities (JKD01231701).

语种：英文

外文关键词：EMI shielding; mechanical properties; MXene; AgNWs; CNTs

摘要：Although the high conductivity of MXenes can substantially contribute to excellent electromagnetic interference (EMI) shielding through electromagnetic wave reflection, their derived aerogels still exhibit poor mechanical properties (about 10-15 kPa). To address this tough issue, we present a feasible freeze-drying approach to prepare a three-phase composite aerogel interconnecting MXene, Ag nanowire (AgNW), and carbon nanotube (CNT) compositions via a hydrogen bond and van der Waals force. The strong interfacial interaction in the three-phase structures produced an abundant rigid skeleton and a "cell wall" structure, yielding a high conductivity of 333.65 S/m with an excellent EMI SE of 57.5 dB and a much enhanced compressive strength (23.62 kPa), which is 10-20% higher than the current typical high-performance MXene aerogel. The three-phase MXene/AgNWs/CNTs aerogel provides us with a promising application scenario emphasizing excellent compressive strength, resilience, and electromagnetic shielding performance that can meet the increasingly strict requirements for high-strength electromagnetic shielding materials.